Polyporopepsin

Polyporopepsin
Identifiers
EC no.	3.4.23.29
CAS no.	61573-73-7
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

Polyporopepsin, also called Polyporus aspartic proteinase, Irpex lacteus aspartic proteinase or Irpex lacteus carboxyl proteinase B, is an enzyme found in the fungus Irpex lacteus . ^{[1] [2]} It catalyses the following chemical reaction:

Milk clotting activity, broad specificity, but fails to cleave Leu¹⁵-Tyr or Tyr¹⁶-Leu of insulin B chain.

Irpex lacteus is a basidiomycete also known as Polyporus tulipiferae.

References

1. Kobayashi H, Kusakabe I, Murakami K (1983). "Substrate specificity of a carboxyl proteinase from Irpex lacteus". Agric. Biol. Chem. 47 (8): 1921–1923. doi: 10.1271/bbb1961.47.1921 .
2. Kobayashi H, Sekibata S, Shibuya H, Yoshida S, Kusakabe I, Murakami K (1989). "Cloning and sequence analysis of cDNA for Irpex lacteus aspartic proteinase". Agric. Biol. Chem. 53 (7): 1927–1933. doi: 10.1271/bbb1961.53.1927 .

External links

• Polyporopepsin at the U.S. National Library of Medicine Medical Subject Headings (MeSH)